Question

How to use unsafe struct with fixed int array in C#

Answer 1

using System;

public unsafe struct AStruct
{
    public fixed int arr[64];
}

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static AStruct _astruct; 
        static void Main(string[] args)
        {
            Set();
            Print();
        }
        unsafe static void Set()
        {
            fixed (int* _arr = _astruct.arr)
            {
                _arr[0] = 88;
                _arr[12] = 123;
                _arr[34] = 345;
            }
        }

        unsafe static void Print()
        {
            fixed (int* _arr = _astruct.arr)
            {
                Console.WriteLine(_arr[0]);
                Console.WriteLine(_arr[12]);
                Console.WriteLine(_arr[34]);
            }
        }
    }
}


/*
run:

88
123
345

*/

 

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